Apparatus for charging compressed air with atomized liquids.



w. E. KIMBER.

APPARATUS FOR CHARGING COMPRESSED AIR WITH ATOMIZED UQUIDS APPLICATION FILED NOV- 22. l9l6.

Patented July 23, 1918.v

2 S'HEETSSHEET I I Walletviw v W. E. KIMBER. APPARATUS FOR CHARGING COMPRESSED AIR WITH ATOMIZED LIQUIDS.

APPLICATION FILED NOV. 22. I916.

r 8. m 1 e Hz w 1. v %m I mm Um es m2 .w a P UNITE WALTER EDWARD KIMBER, 0F HARLESDEN, LONDON, ENGLAND.

APPARATUS FOR CHARGING COMPRESSED AIR WITH ATOMIZED LIQUIDS.

Specification of Letters Patent.

Application filed November 22, 1916. Serial No. 132,916.

To all whom it may concern:

Be it. known that I, lVALrm: Enwnnn Kiunnn, a subject of the King of Great Britain, residing at 37 Imnan road, Graven Park, Harlesden, London, England, have invented new and Improved Apparatus for Charging Compressed Air with Atomized Liquids, of which the following is a specification.

This invention relates to means which, while applicable for atomizing liquids generally, is especially intended for use in connection with rock drills, to enable a cnrrent of air containing water in spray form under pressure to be introduced, preferably through a hole in the drill bit or tool, into the bore hole produced by said bit for the purpose of allaying dust and removing debris therefrom.

The apparatus according to my inven tion comprises a closed vessel containing the liquid to be atomized, an outer tube project-ing into such liquid and connected with the point or points at which the liquid-laden compressed air current is to be utilized, and an inner tube having issuing orifices arranged within the former tube, and connected with an external source of. compressed air, the surface of the liquid contained in the closed vessel being also subject to the pressure of the compressed air, so as to force such liquid into the tube projecting therein.

In the accompanying drawings,

Figure 1 is a vertical section of the complete apparatus with parts shown in elevation.

Fig. 2 a plan view thereof, and

Fig. 3 an elevation of the top of such apparatus taken in a plane at right angles to Fig. 1.

The apparatus consists of a closed tank 1, preferably of cylindrical form as shown, from the top of which a tube 2 projects to near the bottom thereof, where it is closed,

'but is provided with a small opening 3 placing such tube in communication with the interior of said tank 1. A second tube 4 is arranged concentrically Within the outer tube 2, and terminates a certain distance from the bottom thereof, where it also is closed, but is provided with a suitable number of openings 5 through its wall at a certain distance from its bottom end,

and which are pierced in an upward direction. A clearance 6 or annular space is provided between the outer periphery of the inner tube 1 and the surrounding or outer tube 2 in which same is arranged, the upper end of such space constituting or communieating with the outlet 7 for the atomized liquid, while the upper end of the inner tube at is connected at 8 with a suitable source of compressed air.

The lower end of the outer tube 2 preferably extends into a socket 10 fitted to the base of the tank 1, with openings 11 to permit the liquid 12 contained in the tank 1, to pass, by way of the opening 3 of such tube, to the annular space 6 between tubes 2 and .l, a piece of wire guaze 13, or other suitable material, being it necessary secured below said opening 3, to prevent its obstruction by any solids which the liquid may possibly carry with it.

The opening 3 is further provided with means for regulating the entrance of the liquid from tank 1, which means may conveniently as shown consist of a central rod 1-1, operated by a hand wheel 15 at its upper end, and terminating in a point 16 c0nstituting a valve adapted to be seated in said opening 3, the stem of rod 1 1 being screw threaded at 17, so as to raise or lower the valve 16 when the rod is operated, and thus effect the required adjustment of opening 3.

The tank 1 is fitted with handles 18 of any suitable construction for raising and transporting same, and its upper end is provided with a suitable opening fitted with a screw plug or cap 19, and serving to charge said tank when required.

The containing tank is filled with the liquid 12 to be atomized, the upper surface of which is through a suitable connection 9 placed open to the pressure of the air supplied to the inner tube .l. The liquid will be by such pressure forced through the small opening 3 at the bottom of the outer tube 2 and upward through the annular space 6 between it and the inner tube 4, in which it will encounter the upwardly directed currents of air issuing through the opening 5 near the bottom of the latter. The issuing air currents acting on the liquid will atomize same and cause it to continue its passage through the annular space 6 in the form of a fine spray mingled with the compressed air. The liquid-laden compressed air current Patented July 23, 1918.

will issuerfrom the upper end of the annular space 6, by the outlet 7, with which a suitable conduitwill be connected to convey the spray to the point at which it is to be utilized.

The apparatus may be provided with any desired number of separate connections or outlets 7 from the annular space 6 between tubes 2 and 4:, or with branches from a single connection for supplying the atomized liquid to different apparatus, such as rock drills, which may be of any suitable or 'known construction, but in which provision is made to permit of the passage of a fluid to the bottom of the bore hole produced by the bit or tool, preferablythrough a central bore in such bit or tool, seas to allay the dust and remove the debris from such bore hole.

The improved apparatus will permit of an atomized liquid carried by compressed air as a vehicle or medium being produced in a separate apparatus and conveyed to the bore holeof the drill where same is to be utilized, instead of as hitherto having to produce same in the drill or tool itself, thereby simplifying the construction of such tool to a considerable eXtent,-and permitting of the utilization of the compressed air-carried atomized liquid in a muchmore efficient manner than has heretofore been possible, while moreover allowing a number of tools to take the required supply of atomized liquid from a single source or atomizing apparatus.

.l/Vhat I claim as my invention, and desire to secure by Letters Patent, is

1. A compressed air moistening apparatus comprising a closed liquid container provided with a compressed airinlet and a compressed air outlet, an air supply inner tube disposed within said container and connected, with said inlet, and an outer tube disposed within said container in communie cation with the interior thereofand with said outlet, a channel of relatively small area in relation to said inner tube being formed between said inner and outer-tubes,

said inner tube having a port establishing communication between it and said channel, said apparatus being adapted to supply to the borehole produced'by a rock drill a volume of compressed air containing a small percentage of moisture sufficient to allay the dust therein and to remove same therefrom.

2. A compressed air moistening apparatus comprising a closed liquid container provided with a compressed air inlet and a compressed air outlet, an outer tube disposed in said container in communication with the interior thereof and connected at its upper end with said outlet, an inner tube disposed in and forming a channel between it and said outer tube, connected with said inlet and provided with a passage communicating vided with a tween said inner and outer tubes, said inner tube having a port establishing communication between it and said channel of relatively small area, and a channel connecting said colnpressed air inlet with the interior of the vessel outside said tubes, said apparatus being adapted to supply to the bore hole produced by a rock drill a volume of compressed air containing a small percentage of moisture suflicient to allay the dust therein and to remove same therefrom.

4:. A compressed air moistening apparatus comprising a closed liquid container provided with a screw-threaded orifice, a tubular plug adapted to close said orifice and provided with, a compressed air inlet, a compressed air outlet and a channel connecting said inlet with the interior of said vessel, an outer tube disposed in said vessel and connected at its upper end with said plug and in communication at its upper end with said outlet and at its lower end with the interior of said vessel, and an inner tube disposed within said outer tube and its upper end connected with said plug an in communication with said inlet, said inner tube being closed at its lower end and pro- 7 passage connecting it with said channel.

5. A compressed air moistening apparatus."

comprising a closed liquid container-provided at its upper end with a screw-threaded orifice andat its lower end with a tapered socket having lateral openings, a tubular plug adapted to close said orifice and provided with a compressed air inlet, a compressed air outlet and a channel connecting said inlet with the interior of said vessel, an outer tube disposed in said vessel and connected at its upper end with said plug I and in communication at its upper end with said outlet and provided at its lower end with a tapered cap extending into said socket and provided with a screened orifice,

and an inner tube disposed within said outer tube and forming a channel therebetween and having its upper end connected with.

said plug and in communication with'said inlet, said imier tube being closed at its" lower end and provided with a passage connecting 1t with sald channel,

lo-outer tube disposed in said vessel and connected at its upper end with said plug and in communication at its upper end with said outlet and provided at its lower end with a tapered cap extending into said socket and 1 provided with a screened orifice, an inner tube disposed within saidouter tube and forming a channel therebetween and having its upper end connected with said plug and in communication with said inlet, said inner tube being closed at its lower end and provided with a passage connecting it with said channel, and a valve spindle disposed in said inner tube and provided at its lower end with a valve closing said screened orifice and at its upper end with actuating means.

7. A compressed air moistening apparatus comprising a closed liquid container provided with a compressed air inlet and a compressed air outlet, an air supply channel disposed within', said container and connected with said inlet, and a channel of relatively small area in relation to said air supply channel, disposed in said container and in communication with the interior thereof and with said outlet, said air supply channel having a port connecting it with said channel of relatively small area above its point of communication with said interior, said apparatus being adapted to supply to the bore hole produced by a rock drill a volume of compressed air containing a small percentage of moisture suflicient to allay the dust therein and to remove same therefrom.

8. A compressed air moistening apparatus comprising a closed liquid container provided with a compressed air inlet and a compressed air outlet, an air supply channel disposed within said container and connected with said inlet, a channel of relatively small area in relation to said air supply channel, disposed in said container and in communication with the interior thereof and with said outlet, said air supply channel having a port connecting it with said channel of relatively small area above its point of communication with said interior, and means connecting said compressed air inlet with the interior of the vessel outside said channels, said apparatus being adapted to supply to the bore hole produced by a rock drill a volume of compressed air containing a small percentage of moisture suiiicient to allay the dust therein and to remove same therefrom.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

'WALTER EDlVAR-D KIMBER.

lVitnesses:

Oi-IAs. A. ALLISON, WILLIAM JAMES Fmumr.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of .Patents, Washington, D. G. 

